Alters entrances around court (7)
I believe the answer is:
doctors
'alters' is the definition.
(doctoring is a kind of altering)
'entrances around court' is the wordplay.
'entrances' becomes 'doors' (door is a kind of entrance).
'around' indicates putting letters inside.
'court' becomes 'ct'.
'doors' enclosing 'ct' is 'DOCTORS'.
(Other definitions for doctors that I've seen before include "consultants" , "Cooks" , "Alters" , "fixes" , "Medical practitioners" .)